import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist
export function setUpRouterPermissions(router){
  router.beforeEach(async (to, from, next) => {
    // start progress bar
    NProgress.start()

    // set page title
    document.title = getPageTitle(to.meta.title)

    // determine whether the user has logged in
    const hasToken = getToken()

    if (hasToken) {
      if (to.path === '/login') {
        // if is logged in, redirect to the home page
        next({path: '/'})
        NProgress.done()
      } else {
        const hasGetUserInfo = store.getters.name
        if (!hasGetUserInfo) {
          try {
            // get user info
            await store.dispatch('user/getInfo')
          } catch (error) {
            // remove token and go to login page to re-login
            await store.dispatch('user/resetToken')
            Message.error(error || '错误')
            next(`/login?redirect=${to.path}`)
            NProgress.done()
            return
          }
        }

        // 检查路由是否需要特定角色权限
        if (to.meta && to.meta.roles && to.meta.roles.length > 0) {
          // 确保用户拥有访问该路由所需的所有角色
          const requiredRoles = to.meta.roles
          const userRoles = store.getters.roles || []

          // 检查用户角色是否包含所有必需的角色
          const hasAllRequiredRoles = requiredRoles.every(role => userRoles.includes(role))

          if (!hasAllRequiredRoles) {
            next(`/403`)
            NProgress.done()
            return
          }
        }

        next()
        NProgress.done()
      }
    } else {
      /* has no token*/
      if (whiteList.indexOf(to.path) !== -1) {
        // in the free login whitelist, go directly
        next()
        NProgress.done()
      } else {
        // other pages that do not have permission to access are redirected to the login page.
        next(`/login?redirect=${to.path}`)
        NProgress.done()
      }
    }
  })

  router.afterEach(() => {
    // finish progress bar
    NProgress.done()
  })

}
